Executive Summary
| Summary | |
|---|---|
| Title | Kerberos Vulnerabilities |
| Informations | |||
|---|---|---|---|
| Name | USN-1233-1 | First vendor Publication | 2011-10-18 |
| Vendor | Ubuntu | Last vendor Modification | 2011-10-18 |
| Severity (Vendor) | N/A | Revision | N/A |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| Overall CVSS Score | NA | ||
| Base Score | NA | Environmental Score | NA |
| impact SubScore | NA | Temporal Score | NA |
| Exploitabality Sub Score | NA | ||
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 7.8 | Attack Range | Network |
| Cvss Impact Score | 6.9 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 11.10 - Ubuntu 11.04 - Ubuntu 10.10 - Ubuntu 10.04 LTS Summary: Several denial of service issues were fixed in the Kerberos Key Distribution Center (KDC). Software Description: - krb5: MIT Kerberos Network Authentication Protocol Details: Nalin Dahyabhai, Andrej Ota and Kyle Moffett discovered a NULL pointer dereference in the KDC LDAP backend. An unauthenticated remote attacker could use this to cause a denial of service. This issue affected Ubuntu 11.10. (CVE-2011-1527) Mark Deneen discovered that an assert() could be triggered in the krb5_ldap_lockout_audit() function in the KDC LDAP backend and the krb5_db2_lockout_audit() function in the KDC DB2 backend. An unauthenticated remote attacker could use this to cause a denial of service. (CVE-2011-1528) It was discovered that a NULL pointer dereference could occur in the lookup_lockout_policy() function in the KDC LDAP and DB2 backends. An unauthenticated remote attacker could use this to cause a denial of service. (CVE-2011-1529) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 11.10: Ubuntu 11.04: Ubuntu 10.10: Ubuntu 10.04 LTS: In general, a standard system update will make all the necessary changes. References: Package Information: |
Original Source
| Url : http://www.ubuntu.com/usn/USN-1233-1 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-20 | Improper Input Validation |
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:14768 | |||
| Oval ID: | oval:org.mitre.oval:def:14768 | ||
| Title: | DSA-2379-1 krb5 -- several | ||
| Description: | It was discovered that the Key Distribution Center in Kerberos 5 crashes when processing certain crafted requests: CVE-2011-1528 When the LDAP backend is used, remote users can trigger a KDC daemon crash and denial of service. CVE-2011-1529 When the LDAP or Berkeley DB backend is used, remote users can trigger a NULL pointer dereference in the KDC daemon and a denial of service. The oldstable distribution is not affected by these problems. | ||
| Family: | unix | Class: | patch |
| Reference(s): | DSA-2379-1 CVE-2011-1528 CVE-2011-1529 | Version: | 5 |
| Platform(s): | Debian GNU/Linux 6.0 Debian GNU/kFreeBSD 6.0 | Product(s): | krb5 |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:21260 | |||
| Oval ID: | oval:org.mitre.oval:def:21260 | ||
| Title: | USN-1233-1 -- krb5 vulnerabilities | ||
| Description: | Several denial of service issues were fixed in the Kerberos Key Distribution Center (KDC). | ||
| Family: | unix | Class: | patch |
| Reference(s): | USN-1233-1 CVE-2011-1527 CVE-2011-1528 CVE-2011-1529 | Version: | 5 |
| Platform(s): | Ubuntu 11.10 Ubuntu 11.04 Ubuntu 10.10 Ubuntu 10.04 | Product(s): | krb5 |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:22017 | |||
| Oval ID: | oval:org.mitre.oval:def:22017 | ||
| Title: | RHSA-2011:1379: krb5 security update (Moderate) | ||
| Description: | The lookup_lockout_policy function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through 1.9.1, when the db2 (aka Berkeley DB) or LDAP back end is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via vectors that trigger certain process_as_req errors. | ||
| Family: | unix | Class: | patch |
| Reference(s): | RHSA-2011:1379-01 CVE-2011-1527 CVE-2011-1528 CVE-2011-1529 | Version: | 42 |
| Platform(s): | Red Hat Enterprise Linux 6 | Product(s): | krb5 |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:23734 | |||
| Oval ID: | oval:org.mitre.oval:def:23734 | ||
| Title: | ELSA-2011:1379: krb5 security update (Moderate) | ||
| Description: | The lookup_lockout_policy function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through 1.9.1, when the db2 (aka Berkeley DB) or LDAP back end is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via vectors that trigger certain process_as_req errors. | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2011:1379-01 CVE-2011-1527 CVE-2011-1528 CVE-2011-1529 | Version: | 17 |
| Platform(s): | Oracle Linux 6 | Product(s): | krb5 |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:27989 | |||
| Oval ID: | oval:org.mitre.oval:def:27989 | ||
| Title: | DEPRECATED: ELSA-2011-1379 -- krb5 security update (moderate) | ||
| Description: | [1.9-9.2] - apply upstream patch to fix a null pointer derference with the LDAP kdb backend (CVE-2011-1527), an assertion failure with multiple kdb backends (CVE-2011-1528), and a null pointer dereference with multiple kdb backends (CVE-2011-1529) (#740084) | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2011-1379 CVE-2011-1527 CVE-2011-1528 CVE-2011-1529 | Version: | 4 |
| Platform(s): | Oracle Linux 6 | Product(s): | krb5 |
| Definition Synopsis: | |||
| |||
CPE : Common Platform Enumeration
OpenVAS Exploits
| Date | Description |
|---|---|
| 2012-07-09 | Name : RedHat Update for krb5 RHSA-2011:1379-01 File : nvt/gb_RHSA-2011_1379-01_krb5.nasl |
| 2012-06-15 | Name : Fedora Update for krb5 FEDORA-2012-8805 File : nvt/gb_fedora_2012_8805_krb5_fc15.nasl |
| 2012-02-12 | Name : Gentoo Security Advisory GLSA 201201-13 (mit-krb5) File : nvt/glsa_201201_13.nasl |
| 2012-02-11 | Name : Debian Security Advisory DSA 2379-1 (krb5) File : nvt/deb_2379_1.nasl |
| 2012-02-01 | Name : Fedora Update for krb5 FEDORA-2011-16284 File : nvt/gb_fedora_2011_16284_krb5_fc15.nasl |
| 2011-11-18 | Name : Fedora Update for krb5 FEDORA-2011-14650 File : nvt/gb_fedora_2011_14650_krb5_fc14.nasl |
| 2011-11-18 | Name : Fedora Update for krb5 FEDORA-2011-14673 File : nvt/gb_fedora_2011_14673_krb5_fc15.nasl |
| 2011-10-31 | Name : Mandriva Update for krb5 MDVSA-2011:160 (krb5) File : nvt/gb_mandriva_MDVSA_2011_160.nasl |
| 2011-10-21 | Name : Ubuntu Update for krb5 USN-1233-1 File : nvt/gb_ubuntu_USN_1233_1.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 76661 | Kerberos KDC lookup_lockout_policy() Function NULL Pointer Dereference Remote... |
| 76660 | Kerberos KDC krb5_ldap_get_principal() Function NULL Pointer Dereference Remo... |
| 76659 | Kerberos KDC Multiple Function Assertation Weakness Remote DoS |
Snort® IPS/IDS
| Date | Description |
|---|---|
| 2014-01-10 | MIT Kerberos kdb_ldap plugin kinit operation denial of service attempt RuleID : 26575 - Revision : 3 - Type : SERVER-OTHER |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2015-01-19 | Name : The remote Solaris system is missing a security patch for third-party software. File : solaris11_kerberos_20130702.nasl - Type : ACT_GATHER_INFO |
| 2014-06-13 | Name : The remote openSUSE host is missing a security update. File : suse_11_3_krb5-111019.nasl - Type : ACT_GATHER_INFO |
| 2014-06-13 | Name : The remote openSUSE host is missing a security update. File : suse_11_4_krb5-111019.nasl - Type : ACT_GATHER_INFO |
| 2013-09-04 | Name : The remote Amazon Linux AMI host is missing a security update. File : ala_ALAS-2011-15.nasl - Type : ACT_GATHER_INFO |
| 2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2011-1379.nasl - Type : ACT_GATHER_INFO |
| 2012-09-06 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2011-159.nasl - Type : ACT_GATHER_INFO |
| 2012-08-01 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20111018_krb5_on_SL6_x.nasl - Type : ACT_GATHER_INFO |
| 2012-01-24 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-201201-13.nasl - Type : ACT_GATHER_INFO |
| 2012-01-12 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2379.nasl - Type : ACT_GATHER_INFO |
| 2011-11-16 | Name : The remote Fedora host is missing a security update. File : fedora_2011-14650.nasl - Type : ACT_GATHER_INFO |
| 2011-11-16 | Name : The remote Fedora host is missing a security update. File : fedora_2011-14673.nasl - Type : ACT_GATHER_INFO |
| 2011-10-24 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2011-160.nasl - Type : ACT_GATHER_INFO |
| 2011-10-19 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2011-1379.nasl - Type : ACT_GATHER_INFO |
| 2011-10-19 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-1233-1.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:59:07 |
|
